Read and write dan beberapa fungsi file di android

Read and write file di android

-READING-

pertama tentuin lokasi file yang kamu mau
String file_location = "/sdcard/myid.txt";

lalu panggil method file di android
File maijangar = new File(file_location);

untuk membaca file maka gunakan FIleInputStream
String aBuffer = "";
			FileInputStream fIn = null;
			try {
				fIn = new FileInputStream(myFile);
			} catch (FileNotFoundException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
Setela itu seperti biasa masukin ke BeufferdReader
			BufferedReader myReader = new BufferedReader(new InputStreamReader(
					fIn));
dan dibaca untuk setiap barisnya
			String aDataRow = "";

			try {
				while ((aDataRow = myReader.readLine()) != null) {
					aBuffer += aDataRow;
				}
			} catch (IOException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
dan Jangan lupa untuk di tutup
			try {
				myReader.close();
			} catch (IOException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
			Log.d("readFile : ", aBuffer);
			return aBuffer;
-===============================================================-
Membuat File Baru

tinggal create new File Aja pada kelas File
try {
				myFile.createNewFile();
			} catch (IOException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}

-===============================================================-
Membuang File

tinggal panggil delete aja di kelas File
myFile.delete()
-===============================================================-
-WRITING-
yang di gunain yaitu FileOutputStream yang sebelumnya dimasukkan ke myFile tentunya
FileOutputStream fOut = null;
try {
	fOut = new FileOutputStream(myFile);
} catch (FileNotFoundException e) {
	// TODO Auto-generated catch block
	e.printStackTrace();
}

Nah setelah itu masukin teks dari dokumen yang ada pada FileOutputStream dimasukkan ke OutputStreamWriter, lalu di append berdasarkan teks yang diminta :
OutputStreamWriter myOutWriter = new OutputStreamWriter(fOut);
try {
	myOutWriter.append(myText);
} catch (IOException e) {
	// TODO Auto-generated catch block
	e.printStackTrace();
}

Jangan lupa di Tutup pastinya

try {
	myOutWriter.close();
} catch (IOException e) {
	// TODO Auto-generated catch block
	e.printStackTrace();
}
try {
	fOut.close();
} catch (IOException e) {
	// TODO Auto-generated catch block
	e.printStackTrace();
}